The answer to all of them should be “You should ask someone who is familiar with those types of problems, I’m a computer programmer”. Followed with a light slap of the person asking the question. If you attempt to glean information from the applicant’s answer, you are assuming you’re infinitely more brilliant than them.

But I’d bet answering the window washing question with something about installing Linux would gain you a few points.

One interesting point I’d like to bring up is that it would be impossible to produce ropes that burn for a certain period of time unless they burn uniformly.